Home / 15,559,988,700.75-21,472,791,339.60-8,423,402,281.85

Finding the Fourth Proportional to 15,559,988,700.75, 21,472,791,339.60 and 8,423,402,281.85

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Solution

The fourth proportional to 15,559,988,700.75, 21,472,791,339.60 and 8,423,402,281.85 is: 11,624,298,901.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,559,988,700.75 : 21,472,791,339.60 = 8,423,402,281.85 : x
  2. Step 2: Convert to fraction form
    15,559,988,700.75/21,472,791,339.60 = 8,423,402,281.85/x
  3. Step 3: Cross multiply
    15,559,988,700.75x = 21,472,791,339.60 × 8,423,402,281.85
  4. Step 4: Simplify right side
    15,559,988,700.75x = 180,873,959,567,729,229,824
  5. Step 5: Solve for x
    x = 180,873,959,567,729,229,824/15,559,988,700.75
  6. Step 6: Final answer
    x = 11,624,298,901.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.